Effect of Cerium on High-Temperature Oxidation Resistance of 00Cr17NbTi Ferritic Stainless Steel

被引：29
作者：
Li, Xin [1 ,2 ]
Shu, Jun [3 ]
Chen, Liqing [1 ]
Bi, Hongyun [2 ]
机构：
[1] Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110819, Peoples R China
[2] Res Inst Baosteel, Baosteel Grp, State Key Lab Dev & Applicat Technol Automobile S, Shanghai 200431, Peoples R China
[3] Faurecia Exhaust Control Technol Dev Shanghai Co, Ctr Tech, Shanghai 201107, Peoples R China
来源：
ACTA METALLURGICA SINICA-ENGLISH LETTERS | 2014年 / 27卷 / 03期
基金：
国家高技术研究发展计划(863计划);
关键词：
Ferritic stainless steel; Oxidation; Cerium oxides; Cavity; MECHANISM; BEHAVIOR; ALLOYS; GROWTH;
D O I：
10.1007/s40195-014-0079-6
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The influence of cerium addition on the isothermal oxidation behavior of 00Cr17NbTi ferritic stainless steel was studied at temperature up to 1,000 degrees C for 100 h in air. The results show that cerium additions can reduce the grain size of this ferritic stainless steel, improve the diffusion of chromium and decrease the critical concentration of chromium to form protective Cr2O3 layer. With the increasing of cerium addition, the oxide particles become smaller and this can increase the rupture strength and spalling resistance of oxide layers. The transport mechanism through the oxide layer is varied from metal transport outward from steel to principally oxygen transport inward with the increase of cerium content, which leads to the lower oxidation rate and the better scale adherence of 00Cr17NbTi ferritic stainless steel.
引用
收藏
页码：501 / 507
页数：7
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